Global Patent Index - EP 4023594 A4

EP 4023594 A4 20231220 - LITHIUM-ION-CONDUCTIVE OXIDE

Title (en)

LITHIUM-ION-CONDUCTIVE OXIDE

Title (de)

LITHIUM-IONEN-LEITENDES OXID

Title (fr)

OXYDE CONDUCTEUR D'IONS LITHIUM

Publication

EP 4023594 A4 20231220 (EN)

Application

EP 20856234 A 20200826

Priority

  • JP 2019158373 A 20190830
  • JP 2020032156 W 20200826

Abstract (en)

[origin: EP4023594A1] An embodiment of the present invention relates to a lithium ion-conducting oxide or a lithium-ion secondary battery. The lithium ion-conducting oxide includes at least lithium, tantalum, phosphorus, M2, and oxygen as constituent elements, wherein M2 is at least one element selected from the group consisting of elements of the Group 14 and Al (provided that carbon is excluded), a ratio of number of atoms of each constituent element of lithium, tantalum, phosphorus, M2, and oxygen is 1 : 2 : 1-y : y : 8, wherein y is more than 0 and less than 0.7, and the lithium ion-conducting oxide contains a monoclinic crystal.

IPC 8 full level

C01B 25/37 (2006.01); C01B 25/45 (2006.01); C01B 33/20 (2006.01); H01B 1/06 (2006.01); H01B 1/08 (2006.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01)

CPC (source: EP KR US)

C01B 25/37 (2013.01 - KR); C01B 25/45 (2013.01 - EP US); C01B 33/20 (2013.01 - EP); C04B 35/495 (2013.01 - EP); C04B 35/6262 (2013.01 - EP); C04B 35/62675 (2013.01 - EP); H01B 1/08 (2013.01 - EP); H01M 10/0525 (2013.01 - EP US); H01M 10/0562 (2013.01 - EP KR US); C01P 2002/54 (2013.01 - US); C01P 2002/72 (2013.01 - US); C01P 2004/04 (2013.01 - US); C01P 2006/40 (2013.01 - EP US); C04B 2235/3203 (2013.01 - EP); C04B 2235/3251 (2013.01 - EP); C04B 2235/3418 (2013.01 - EP); C04B 2235/447 (2013.01 - EP); C04B 2235/76 (2013.01 - EP); C04B 2235/77 (2013.01 - EP); C04B 2235/80 (2013.01 - EP); H01M 2300/0065 (2013.01 - KR); H01M 2300/0068 (2013.01 - EP US); Y02E 60/10 (2013.01 - EP KR)

Citation (search report)

  • [E] US 11728510 B2 20230815 - KIM RYOUNGHEE [KR], et al
  • [E] KR 20220032583 A 20220315 - SHOWA DENKO KK [JP]
  • [AD] JAEGYEOM KIM ET AL: "LiTa 2 PO 8 : a fast lithium-ion conductor with new framework structure", JOURNAL OF MATERIALS CHEMISTRY A, vol. 6, no. 45, 1 January 2018 (2018-01-01), GB, pages 22478 - 22482, XP055687208, ISSN: 2050-7488, DOI: 10.1039/C8TA09170F
  • [L] LEI JINGANG ET AL: "Te doping effect on the structure and ionic conductivity of LiTa2PO8 solid electrolyte", CERAMICS INTERNATIONAL, vol. 49, no. 2, 1 January 2023 (2023-01-01), NL, pages 1980 - 1986, XP093100378, ISSN: 0272-8842, DOI: 10.1016/j.ceramint.2022.09.163
  • [L] KIM RYOUNGHEE ET AL: "Computational Design and Experimental Synthesis of Air-Stable Solid-State Ionic Conductors with High Conductivity", CHEMISTRY OF MATERIALS, vol. 33, no. 17, 16 August 2021 (2021-08-16), US, pages 6909 - 6917, XP093100379, ISSN: 0897-4756, DOI: 10.1021/acs.chemmater.1c01837
  • See also references of WO 2021039835A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 4023594 A1 20220706; EP 4023594 A4 20231220; CN 114303267 A 20220408; CN 114303267 B 20240402; JP 2021038100 A 20210311; JP 6878529 B2 20210526; KR 102701021 B1 20240902; KR 20220032583 A 20220315; US 2022359907 A1 20221110; WO 2021039835 A1 20210304

DOCDB simple family (application)

EP 20856234 A 20200826; CN 202080061290 A 20200826; JP 2019158373 A 20190830; JP 2020032156 W 20200826; KR 20227004207 A 20200826; US 202017638529 A 20200826